Radio receiving apparatus



Aug. 7, 1928. 1,679,533

A. B.- KUPSCHE RADIO RECEIVING APPARATUS Filed Aug. 15, 1924 ,2Sheets-Sheet l 3 Iruf 271m Ale/raderfl $1 Aug. 7, 1928. 1,679,533

A. B. KUPSCHE RADIO RECEIVING APPARATUS Filed Aug. 15, 1924 2Sheets-Sheet 2 mm WW 5 2 5 0 Patented Aug. 7, 1928 I ALEXANDER 1e.xnrs'cnnor CHICAGO, ILLINOIS.

RADIO RECEIVING APPARATUS.

Application filed August 15,1924. serial no. 32.152.

This invention relates to improvements inradio receiving apparatus andconsists of the matters hereinafter described and more particularlypointed out in the appended claim.

One of the objects of the present inven tion is to provide a novel andimproved apparatus, which not only includes suitable means for thereception of radio Waves but also has combined therewith an illuminatingdevice, shaded bya part or" the receiving apparatus and so, arranged asto direct the rays from said illuminating device upon the other parts ofapparatus sothat they may be most conveniently manipulated.

A further object of the invention is to provide an improved aerial forthe receiv ing set which is so arranged as to provide a shade for theilluminating device, capable of being tilted in a' direction adapted forthe best receptionand also for the desired disposition of the lightrays. .5

Still a further objectof the invention is to so arrange thev-ariousparts thereof, that the apparatus is symmetrically balanced and presentsan ornamental and pleasing appearance as well as providing a device ofgreat utility.

These objects, of theinvention, as well'as others together with themany, advantages hereof willrnore fullyappear as I proceed withmyj'specification. M

In the'drawings: I

. Fig. 1 is a viewin side elevation of an apparatus embodying myinvention, with parts shown as broken away to more clearly illus- .tratethe interior construction.

Fig. 2 is a horizontal sectional view as taken on the line,22- ofF-ig.1.. l

Fig. 8 is anotherhorizontal sectional view as taken on the line 33 ofFig. 1.

Fig. i is a detail horizontal sectional view on an enlarged scale astaken on the line 4-4.- of Fig. 1. I

5 is a top plan view on a reduced scale, of the COHl'blIIGd aerial andshadeflof the apparatus. V Y

Fig. 6 is a perspective view otaieertain block embodied in the apparatusand which will be more fully described later. i 7

Referring now in detail to that embodiment of the invention'illust'ratedin the accompanying drawings 1 indicates as a Whole the horizontallydisposed hollow base of the apparatus, whichis preferably made .oit-a vaiintj-ble in u a ngma r al. field base in cludes top and bottom spacedplates Qand 3, respectively, which are connected together at theiredges'by an upright wall 4' and said base has'an enlarged central bodypart. 5 with oppositely disposed smaller rounded end extensions 6; and7, respectively. The

base 1 is of such an area as to provide a stable support f-orthe'apparatus as a whole and so that the same. will not mar or injureany table top or th-'e like upon which it is placed I provide on theunder side thereof, a plurality of yielding'feet 8, or a felt pad whichmay serve as well for said purpose.

Arising from the rounded end extensions .6 and 7 are sockets 9 and 10adapted to receive-adetector tube 11 and an amplifying tube 12;,respectively, of any Well known kind, used ingradiorjeceiving sets.Preferably the base 1 is made of. a molded dielectric material so-thatsaid sockets are mad integral with said top plate. Y

Arising from the central body part5 of the base is a plurality ofupright legs l3 .arranged infront and rear pairs. respectively, allequally spaced about a common vertical axis.- The top ends of saidlegs,which are formed to more closely approach said axis are secured in anysuitable manner to the cutawaysoorners of a rectangular block 14 asshown in Figs. 1 and 4, saidblock being shown in perspective in Fig. ,6.In the front and reartaces of said block are vertically extendinggrooves 1:5-15 respectively, and

in the side faces of said block are vertically extending grooves 15-15which are of a greater depth at their top end than they are at theirbottom ends, the purposes of said grooves appearing-later.

Within and near the bottom ends of said legs 13, but spaced a shortdistance above the base is an annular plate 16 which is se-' I side ofthe centrally disposed circular body part =5 thereof. To that end ofsaid shaft 19, beyond the hearing plate QOisfixed a dial 21 having theusual graduations thereon which cooperate with a suitable mark on thefront face of said'plate 20. Q

Tothe under side of the topplate 2 of the iii base 1 and spaced equaldistances on each side of the vertical axis of the annular plate 16 areprovided the usual plug in acks 22 and 23, respectively which openthroughthe vertical wall 4 of the base 1 to receive the associated plugs(not shown). .Between the nuiar plate or ring 16 and the sockets 9 and10, respectively, in the longitudinal plane of the major axis the baseand on the top plate thereof are rheostats 24 and 25 associategfl withthe detector tube and amplifying tube, respectively. The coil parts 24and 25 of said rheostats are arranged withinthe hollow base and aresecured to the'bottom surface of the top plate while the knobs 24" and25", respectively of said rheostats are mounted on the top surface ofsaid top plate so that the same are disposed in positions most suitablefor their convenient manipulation. Supported between the top ends of thelegs 13, just below the block 14 a transformer 26 of any well knownkind.

27 and 28 indicate upright front and rear, substantially semi-circularplates of insulating material, each having a centrally disposed stem 27and 28, respectively, which lit and are secured as by'means of screws inthe front and rear grooves 15-15 of the block 14, as shown in Fig. 4.Secured in the side grooves 15"'15 of the block 14 are the reverselycurved inner ends of oppositely disposed, horizontally extending members29 which are arranged between and act to rigidly hold the plates 27, 28in the desired spaced apart relation. The outer ends of the members 29project beyond the periphery of the plates for a purpose to appearlater, and coacting with said members in holding said plates in saidspaced apart relation are screws 80-30 which extend through one plateand are threaded into the other plate shown in Figs. 1 and 3. In theperiphery of said plates are formed notches 31.

To the 'llllClCllO part of the front plate 27 and extending forwardlytherefrom on its vertical median line, is a condenser 32 ineluding theusual fixed and rotative spaced metallic plates 32 and 32 respectivelyand the supporting frame plates 32 which are made of insulatingmaterial. Said condenser is secured to the front plate 27 by the samescrews 83 which secure the fixed plates 32" and fran'ie plates 32 of thecondenser together.

To the shaft 34 of the condenser is secured a dial and turning knob 34,the dial having the usual graduations which cooperate with a mark on thefront supporting plates'ofthe condenser in the manner well known. On therear plate 28 in line with the condenser, is mounted an inductance coilthepurpose of which is well known.

36 indicates an elastic tubular standard which is arranged midwaybetween the two plates 14 and and is anchored at its bottom end to theblock 14. Said tubular stand aid is preferably made of a tightly coiledspring and is reinforced at its top and bottom ends by short pieces oftubing 36 36' respectively, as shown in dotted lines in Fig. 1. Saidstandard may be flexed or bent in the plane of the plates 27-28 andcoacting means are provided on said plates and said standard to holdsaid standard in any desired angular position with reference to saidplates. To this end there is provided on the standard 36 a block 37which has forwardly and rearwardly extending pins 37-' 37 upon which arepivoted oppositely facing Ushapedbails 3S38 which are adapted to in thenotches 31 in the peripheries of the plates 27 and 28. Each bail carriesa setscrew which when threaded inwardly to engage the block 36 isadapted to lock said bails in position in the engaged notches so as tohold the tubular standard in the desired angular position. The extremeflexed or bent over position of the standard is limited by one or theother of the members 29' and in said extreme flexed or bent overposition one or the other of the bails 38 is hooked on the projectingend of said member 29. i v,

Upon the top end of the tubular standard is located a socket 41 adaptedto receive an electric light bulb 42. Said tubular standard provides anadvantageous support for the aerial 43 of the radio receiving apparatus.Asshown herein said aerial is of the loop type and includes an open orskeleton frame comprising top and bottom rings 44 and 45 and connectingmembers 46. In this instance,'the bottom. ring has rotative bearing uponthe socket 41 so that the frame which tapers from bottom to top maybeturned into different positions with respect to said socket. Upon theconnecting memhere 46 of said frame are wound the spaced convolutions 47of the aerial wire. Pref-' erably, the open frame with theaerial wirewound thereon is covered by a suitable material-1 48 so that said aerialas a whole provides the shade for the'lamp or light bulb. The elastictubular standard 23 provides a convenient conduit for the'wires (notshown) leading to the light bulb 42 and it may also be used as a conduitfor the wire connecting the aerial to the other elements of thereceiving set. The wiring between the various elements may be arrangedin accordance with the desired circuit andfor the sake of clearness allwires or indications thereof have been purposely omitted from thedrawings; By releasing the set screws 40 and by lifting the bails 38.out of engagement from their respective notches, the standard 36 may beflexed or bent over into the desired angular position after which thebails are again entered into the corresponding notches, in the plates 27and 28 and are then locked therein by tightening up on the set screws,which together with the contractile action of the standard locks thesame in the desired ad-, justed position. g

It is apparent that there is provided a neat compact combined radioreceiving apparatus and lamp Which is pleasing and ornamental inappearance and may readily be placed upon a table and the like.Furthermore, the aerial made as described, provides a shade whichdirects the light rays upon the various instruments vor parts to bemanipulated so that said parts are fully illuminated When bringing ortuning in a broadcasting station.

While in describlng my mvention, I have referred to certain details ofconstruction, as

Well as the form and arrangement of parts, 'it is to be understoodthatthe same is by Way of illustration only and not by Way of limitation,because other arrangements might readily suggest themselves to thoseskilled in the art.

I claim as my invention An apparatus ofthe kind described embodyingtherein a base, a plurality of legs rising from said base, a blocktowhich the top ends of said legs are fixed, two spaced plates fixed toand rising from opposite sides of the said block, a flexible standardrising from said block and adapted to be flexed in the plane of saidplates into different angular positions, latches carried by saidstandard to engage fixed parts of the plate to lock it in difi'erentangulaupositions and a loop aerial carried by said standard above thelatches.

In testimony whereof, I have hereunto set my hand, this 1st day ofAugust,192d.

. ALEXANDER B. KUPsoHE;

